As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, LANDING GEAR WOULD NOT RETRACT. AIRCRAFT RETURNED TO THE FIELD AND THEN WAS FERRIED TO CVG GEAR DOWN. CVG MAINT COULD NOT DUPLICATE THE PROBLEM BUT DID FIND A DI11 OFF CODE. THE LANDING GEAR CONTROL HANDLE WAS REPLACED AS A PRECAUTIONARY MEASURE.